7rulnik/source-map-js має індекс здоров’я 51 зі 100, що відповідає смузі «Помірний». Найвищий показник — Sustainability & Governance (62/100), найнижчий — AI Readiness (39/100). Останнє оновлення було 72 дні тому. Більшість нещодавньої роботи виконує один учасник.
51
загалом / 100
Помірний
Індекс здоров'я програмного забезпечення
Метрики згруповано у зважені категорії на шкалі 1–100. Загальна оцінка починається як їхнє середнє; коли публічні дані активують Політику юрисдикцій високого ризику, рейтинг коригується й отримує верхню межу 49 («Під ризиком»). Готовність до ШІ не входить до індексу.
51
Відмінний85-100Зразковий; відповідає практично всім перевіреним критеріям
Добрий70-84Здоровий; незначні прогалини
Помірний50-69Прийнятний, але з помітними прогалинами; рекомендовано перевірку
У зоні ризику30-49Суттєві слабкі місця; впровадження потребує обережності
Критичний1-29Серйозні проблеми (покинутий, єдиний мейнтейнер, без базової гігієни)
Профіль оцінок
Кожна вісь — окрема категорія. Форма важить більше, ніж середнє: здоровий об'єкт заповнює всю фігуру, тоді як профіль із піками та провалами означає, що сила в одному вимірі маскує ризик в іншому.
Прямі залежності без відомих сповіщень — жодна пряма залежність не має відомих сповіщень
0/25
Непрямі залежності без відомих сповіщень — транзитивний набір не відокремлюється від залежностей розробки й тестування в цьому обсязі
0/40
Немає задавнених сповіщень — жодне сповіщення не має дати публікації
Використані вхідні дані
source
osv
advisories
9
affected_packages
6
assessed_packages
64
unassessed_packages
0
affected_by_severity
critical 2, high 3, moderate 1
direct_affected_packages
0
Виключено з оцінювання (немає даних або не застосовно): Непрямі залежності без відомих сповіщень, Немає задавнених сповіщень. Залишкові ваги перенормовано. Звірено 64 резолвлених залежностей із OSV. Цей репозиторій не публікує пакета, який резолвить індекс, тож натомість оцінено граф залежностей репозиторію. Цей граф змішує закріплені версії для розробки й тестування зі справді постачаними залежностями, тож оцінюються лише задекларовані runtime-залежності; транзитивні знахідки подаються як контекст і в оцінку не входять. Досяжність не аналізується.
Наскільки репозиторій оснащений для розробки та супроводу за участі ШІ-агентів? Незалежний, експериментальний бейдж — вага 0.0, тож він подається окремо і не впливає на загальний індекс здоров'я.
Типізований код — JavaScript без конфігурації перевірки типів
49.6/55
Керовані розміри файлів — 5/51 файлів вихідного коду понад 60 КБ
Використані вхідні дані
primary_language
JavaScript
largest_source_bytes
15 927 873
source_files_sampled
51
oversized_source_files
5
Ключові факти
103зірок GitHub
63контриб'юторів
70комітів за останні 12 місяців
72днів від останнього пушу
7релізів
1бас-фактор
5відкритих issue
npmпакетних екосистем
Попередження щодо збору даних
Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
Community profile unavailable
Докладніше
Історія зірок і форків 0 ★ / 14 ⇿
0Зірки
14Форки
7Релізи
Коли додано кожну зірку й форк — зібрано з GitHub і згруповано за днями. Кумулятивне зростання розміщено просто над денними додаваннями, з яких воно складається, тож їх видно одне проти одного: рівномірне органічне накопичення виглядає зовсім інакше, ніж різкий короткочасний сплеск. Там, де цю різницю можна виміряти, її подано як автентичність росту.
Мажорні 1Мінорні 2Патчі 4
Кожна точка охоплює 5 днів.
OpenSSF Scorecard 3.6 / 10
3.6сукупно
Незалежна, не прив'язана до інструментів оцінка безпеки від відкритого проєкту OpenSSF Scorecard. Кожна перевірка винагороджує практику безпеки, а не інструмент конкретного постачальника. Перевірки, які Scorecard не зміг визначити, позначено н/д і виключено з оцінки безпеки (вони ніколи не зараховуються як нуль).Scorecard v5.5.0 · 2026-07-22 16:11 UTC
Повний розв'язаний набір залежностей із графа залежностей GitHub: 0 прямих і 64 непрямих (транзитивних) пакетів. Транзитивне замикання є повним, коли в репозиторії закомічено lockfile.
Реєстр
Пакет
Версія
Зв'язок
npm
@jridgewell/gen-mapping
0.3.13
непряма
npm
@jridgewell/resolve-uri
3.1.2
непряма
npm
@jridgewell/sourcemap-codec
1.5.5
непряма
npm
@jridgewell/trace-mapping
0.3.31
непряма
npm
@nodelib/fs.scandir
2.1.5
непряма
npm
@nodelib/fs.stat
2.0.5
непряма
npm
@nodelib/fs.walk
1.2.8
непряма
npm
anchor-markdown-header
0.5.7
непряма
npm
benchmark
2.1.4
непряма
npm
braces
3.0.2
непряма
npm
clean-publish
3.1.0
непряма
npm
core-util-is
1.0.2
непряма
npm
cross-spawn
7.0.3
непряма
npm
doctoc
0.15.0
непряма
npm
dom-serializer
0.2.2
непряма
npm
domelementtype
1.3.1
непряма
npm
domelementtype
2.1.0
непряма
npm
domhandler
2.2.1
непряма
npm
domutils
1.5.1
непряма
npm
emoji-regex
6.1.3
непряма
npm
entities
1.0.0
непряма
npm
entities
2.2.0
непряма
npm
fast-glob
3.2.7
непряма
npm
fastq
1.13.0
непряма
npm
fill-range
7.0.1
непряма
npm
fs-extra
10.0.0
непряма
npm
glob-parent
5.1.2
непряма
npm
graceful-fs
4.2.8
непряма
npm
htmlparser2
3.7.3
непряма
npm
inherits
2.0.4
непряма
npm
is-extglob
2.1.1
непряма
npm
is-glob
4.0.3
непряма
npm
is-number
7.0.0
непряма
npm
isarray
0.0.1
непряма
npm
isexe
2.0.0
непряма
npm
jsonfile
6.1.0
непряма
npm
lilconfig
2.0.3
непряма
npm
lodash
4.18.1
непряма
npm
lodash.sortby
4.7.0
непряма
npm
merge2
1.4.1
непряма
npm
micromatch
4.0.4
непряма
npm
minimist
1.1.3
непряма
npm
path-key
3.1.1
непряма
npm
picomatch
2.3.0
непряма
npm
platform
1.3.6
непряма
npm
punycode
2.3.1
непряма
npm
queue-microtask
1.2.3
непряма
npm
readable-stream
1.1.13
непряма
npm
reusify
1.0.4
непряма
npm
run-parallel
1.2.0
непряма
npm
shebang-command
2.0.0
непряма
npm
shebang-regex
3.0.0
непряма
npm
source-map
0.6.1
непряма
npm
source-map-js-latest
1.2.1
непряма
npm
source-map-wasm
0.8.0-beta.0
непряма
npm
string_decoder
0.10.31
непряма
npm
to-regex-range
5.0.1
непряма
npm
tr46
1.0.1
непряма
npm
underscore
1.12.0
непряма
npm
universalify
2.0.0
непряма
npm
update-section
0.3.3
непряма
npm
webidl-conversions
4.0.2
непряма
npm
whatwg-url
7.1.0
непряма
npm
which
2.0.2
непряма
Сповіщення про залежності 6
Цей репозиторій не публікує пакета, який розпізнає індекс, тож оцінено його власний граф залежностей — 64 пакетів, серед яких є й піниї розробки та тестування, що ніколи не постачаються: 6 мають відомі сповіщення, з них 0 прямі.
Пакет
Версія
Зв'язок
Критичність
Сповіщень
Виправлено в
minimist
1.1.3
непряма
критична
2
1.2.6
underscore
1.12.0
непряма
критична
2
1.13.8
braces
3.0.2
непряма
висока
1
3.0.3
cross-spawn
7.0.3
непряма
висока
1
7.0.5
picomatch
2.3.0
непряма
висока
2
4.0.4
micromatch
4.0.4
непряма
помірна
1
4.0.8
Сповіщення означає, що версія, записана в графі залежностей, потрапляє в уражений діапазон. Досяжність не аналізується, а граф містить піниї розробки й тестування — знахідка може стосуватися інструментів, а не поставленого коду.
Звіт у форматі JSON машиночитний
{
"data": {
"repo": {
"topics": [],
"is_fork": true,
"size_kb": 18444,
"has_wiki": true,
"homepage": null,
"languages": {
"R": 8735,
"Shell": 6755,
"JavaScript": 408794
},
"pushed_at": "2026-05-10T23:50:17Z",
"created_at": "2021-01-15T23:19:53Z",
"owner_type": "User",
"updated_at": "2026-05-10T23:50:20Z",
"description": "Consume and generate source maps.",
"is_archived": false,
"is_disabled": false,
"license_spdx": null,
"default_branch": "main",
"license_spdx_raw": "NOASSERTION",
"primary_language": "JavaScript",
"significant_languages": [
"JavaScript"
]
},
"owner": {
"blog": null,
"name": "Valentin Semirulnik",
"type": "User",
"login": "7rulnik",
"company": "@KosyanMedia",
"location": "Tbilisi, Georgia",
"followers": 363,
"avatar_url": "https://avatars.githubusercontent.com/u/5969049?v=4",
"created_at": "2013-11-18T12:53:59Z",
"is_verified": null,
"public_repos": 116,
"account_age_days": 4629
},
"license": {
"state": "custom",
"spdx_id": null,
"raw_spdx": "NOASSERTION",
"file_present": true,
"scorecard_found": true,
"profile_has_license": false
},
"activity": {
"releases": [
{
"tag": "v1.2.1",
"kind": "patch",
"published_at": "2024-09-08T16:24:37Z"
},
{
"tag": "v1.2.0",
"kind": "minor",
"published_at": "2024-03-19T16:22:37Z"
},
{
"tag": "v1.1.0",
"kind": "minor",
"published_at": "2024-03-17T19:34:58Z"
},
{
"tag": "v1.0.3",
"kind": "patch",
"published_at": "2024-03-17T18:33:46Z"
},
{
"tag": "v1.0.2",
"kind": "patch",
"published_at": "2024-03-17T18:33:25Z"
},
{
"tag": "v1.0.1",
"kind": "patch",
"published_at": "2021-11-08T19:46:10Z"
},
{
"tag": "v1.0.0",
"kind": "major",
"published_at": "2021-11-04T20:54:24Z"
}
],
"recent_commits": [
{
"oid": "c1cd8904bb7bd0c7fb5879fcda48134d82a27934",
"body": null,
"is_bot": false,
"headline": "perf: inline base64VLQ.decode slow path in _parseMappings (#74)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T23:50:15Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "be7165b198d718033f40a263174d2ddd35af5528",
"body": null,
"is_bot": false,
"headline": "perf: inline getArg(source) in generatedPositionFor (#73)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T23:33:20Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "05ca8ee35ab22fb09a785ffc46ffe942a4ba4163",
"body": "…PositionFor (#72)",
"is_bot": false,
"headline": "perf: inline getArg(line/column) in originalPositionFor and generated…",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T23:09:50Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "c9e422d3f217cf9639ab860e472645cbd8a0cfca",
"body": null,
"is_bot": false,
"headline": "perf: Int32Array slab storage for consumer mappings (#71)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T22:55:21Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7c22d042c3706dd981b3c4f8fe038240cd737024",
"body": null,
"is_bot": false,
"headline": "perf: stable Mapping hidden class in _parseMappings (#70)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T22:22:20Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "7368cf753fbcb7804817ff2db98882172a6cfa9b",
"body": null,
"is_bot": false,
"headline": "perf: inline GLB binary search in generatedPositionFor cold path (#68)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T21:57:24Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "ffab58596185ead779438ed0440f37f08f44b8ff",
"body": null,
"is_bot": false,
"headline": "tooling: add profiling harness for V8 cpu/heap/tick profiles (#69)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T21:57:11Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "bc7a1cd8e0800c9a5ad993aeaf49b0b0fedfc240",
"body": "…(#67)\n\nThree small structural changes to the per-mapping eachMapping loop:\n\n1. Skip `aCallback.bind(context)` when `context === null`. The bind\n produces a bound function V8 can't inline, so every per-mapping call\n dispatches through Function.prototype's internal [[Call]] path. With\n no conte\n[…]\n, but the structural fix (no bound dispatch when context is\nnull) stands. Baseline error bars on amp are ±8% vs candidate's ±0.5%,\nconsistent with the bound-dispatch path being in a deopt/reopt cycle.",
"is_bot": false,
"headline": "perf: skip null-context bind in eachMapping; direct names array read …",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T21:32:59Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "111868438eb804d0f4f6fa481858ff87a794f604",
"body": "Four sites — names, sourceRoot, sourcesContent, file — all optional with\ndocumented defaults. Same pattern as #59 / #60 / #62.\n\nInit bench shows mostly noise — mean +1.09% across 12 rows, range\n-3.7% to +7.1%. Unlike the SourceMapGenerator ctor change in #62 (which\nsaw +8.7% on the addMapping bench,\n[…]\nON -1.0% / Object +7.1%\n mean +1.09%\n\nCoverage holds: branch 97.16 / 98.75 (just above 97 / 98 thresholds).\nNo new tests needed — existing fixtures already exercise the default\nbranches.",
"is_bot": false,
"headline": "perf: inline optional getArg in BasicSourceMapConsumer constructor (#63)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T21:11:03Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "97bfb5065208cd149e3216c8a5483f2e8a5dc958",
"body": "… checks (#66)\n\nThe previous form had:\n aGenerated && 'line' in aGenerated && 'column' in aGenerated\n && aGenerated.line > 0 && aGenerated.column >= 0\n\nThe numeric `> 0` / `>= 0` checks already subsume the `'line' in X`\nmembership tests — `undefined > 0` and `'abc' > 0` are both false, so\nmissin\n[…]\n stay reachable for the cold cases.\n\nBench (SOLO=1 PHASES=adding generate vs main, two-process):\n preact +10.5%, react +10.2%, amp +7.3%, vscode +6.4%,\n issue-41 +5.2%, babel.min +3.9% — mean ~+7.3%",
"is_bot": false,
"headline": "perf: simplify _validateMapping — hot path first, drop redundant 'in'…",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T21:05:53Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "960454dc8635133f60fb6c89bef18eb326a0a228",
"body": "… (#65)\n\nThree per-mapping hot paths followed `add()` with `indexOf()` to grab the\ninserted/existing index. Both call into the same Map: `add` does a\nhas+set+get-equivalent, `indexOf` does a redundant get. Returning the\nindex from `add` lets callers get the result for free — one Map op per\nsource/na\n[…]\nct +21.4%, amp +20.5%, issue-41 +34.8%,\n vscode +21.1%, babel.min +0.2% — flat, very few unique sources)\n\nAPI: ArraySet.add gains a return value. Existing callers ignoring it\nkeep working unchanged.",
"is_bot": false,
"headline": "perf: ArraySet.add returns index — drop trailing indexOf in hot paths…",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T20:59:09Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "d4ebfea8021f6d7842e666a6370cefd51f4d6f95",
"body": "…eMap (#64)\n\n* perf: typed-array MappingList — slab storage + slab-direct serializer + applySourceMap rebuild\n\nReplace lib/mapping-list.js's `Array<{...mappingObject}>` backing store with\nan Int32Array slab. 6 i32 slots per mapping (genLine, genCol, srcIdx,\norigLine, origCol, nameIdx), -1 sentinel f\n[…]\n the source-less mapping passes through\nunchanged while the sourced one transforms.\n\nBumps all-files branch coverage 96.94 → 97.21 (above the 97 threshold).\nsource-map-generator.js is now 100/100/100.",
"is_bot": false,
"headline": "perf: typed-array MappingList with slab-direct serializer + fromSourc…",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T20:34:41Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "06e7b8457629a6d7f85fcb460ff33d5202367785",
"body": "* perf: inline lastGeneratedColumn getArg in trace return paths\n\nReplace `util.getArg(mapping, 'lastGeneratedColumn', null)` with a direct\nproperty read + null fallback at three return-site call points:\n\n- BasicSourceMapConsumer.generatedPositionFor (per-query return)\n- SourceMapConsumer.allGenerate\n[…]\n\n\nBigger than the constructor preamble alone explains — likely a hidden-\nclass effect where direct property writes shape the SourceMapGenerator\ninstance more predictably than the opaque getArg return.",
"is_bot": false,
"headline": "perf: inline optional getArg in SourceMapGenerator constructor (#62)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T19:25:25Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "5692d84a03108e63d7fff0951e45bfe35dae57e5",
"body": "Replace `util.getArg(mapping, 'lastGeneratedColumn', null)` with a direct\nproperty read + null fallback at three return-site call points:\n\n- BasicSourceMapConsumer.generatedPositionFor (per-query return)\n- SourceMapConsumer.allGeneratedPositionsFor (per-mapping in result, two\n inner loops)\n\n`mappin\n[…]\nES=genpos-speed):\n\n amp.js.map +5.2%\n babel.min.js.map +5.5%\n issue-41.js.map +4.6%\n preact.js.map +4.7%\n react.js.map +0.3%\n vscode.map +14.0%\n mean +5.7%",
"is_bot": false,
"headline": "perf: inline lastGeneratedColumn getArg in trace return paths (#61)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T19:19:50Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "928f00c4fd71159618ab955885ac7de890ed8dae",
"body": "Same pattern as #59 applied to the per-query hot path. Three sites:\n\n1. originalPositionFor (Basic) — `bias` is optional with default GLB.\n Replace `util.getArg(aArgs, 'bias', GLB)` with\n `aArgs.bias != null ? aArgs.bias : GLB`. Saves one function call +\n one `'bias' in aArgs` prototype-walk p\n[…]\nitions speed: mean +11% (-7% to +37%)\n overall mean across 18 rows: +13.5%\n\nNegative outliers (issue-41 ascending, vscode genpos-speed) are inside\nbench variance on noisy fixtures.",
"is_bot": false,
"headline": "perf: inline optional getArg + hoist source in trace methods (#60)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T19:10:35Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "9f904939f03ef64a2fdc0fc4a2572abb9acebd9f",
"body": "addMapping is the per-mapping bottleneck on the generate side (per\nbench-data-followups #4 — slower than encoded output throughput). Two\nsmall wins on the hot path:\n\n1. Replace `util.getArg(aArgs, 'original'|'source'|'name', null)` with\n direct `aArgs.X != null ? aArgs.X : null` reads. Each getArg\n[…]\ne-41.js.map Adding +112%\n preact.js.map Adding +69% / Generate +6%\n react.js.map Adding +57%\n vscode.map Adding +68%\n\n mean +33% across all 12 rows, +65% across addMapping alone.",
"is_bot": false,
"headline": "perf: inline getArg + drop redundant has() in addMapping (#59)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T19:00:31Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "4f1360f3d5743aca788c8efa28271d8bf1988c6d",
"body": "Consecutive mappings almost always share `mapping.source` (and frequently\n`mapping.name`) — bundler output groups mappings by source, then by name.\nThe previous code called `this._sources.indexOf(mapping.source)` and\n`this._names.indexOf(mapping.name)` on every iteration, each hitting the\nArraySet's\n[…]\nPHASES=generate):\n\n amp.js.map +8.3%\n babel.min.js.map +1.9%\n issue-41.js.map +14.8%\n preact.js.map +4.0%\n react.js.map +4.0%\n vscode.map +5.0%\n mean +6.3%",
"is_bot": false,
"headline": "perf: cache last source/name indexOf result in _serializeMappings (#58)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T18:52:09Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "f2c01d04b1aed074cefc1435f14958b1355020dd",
"body": "…#57)\n\nMirror the pattern now in IndexedSourceMapConsumer._parseMappings (#56)\nand _buildOriginalMappings: collect __originalMappings into per-source\nbuckets during the conversion loop, sort each with\ncompareByOriginalPositionsNoSource (skip-sort-if-already-sorted), then\nconcat. Eliminates the flat \n[…]\nixture (via SourceMapGenerator.fromSourceMap) and times\nSourceMapConsumer.fromSourceMap on it. +6–22% on most fixtures, +52% on\nvscode (where many sources × 2M segments made the strcmp sort dominant).",
"is_bot": false,
"headline": "perf: bucket-by-source sort in BasicSourceMapConsumer.fromSourceMap (…",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T18:38:05Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "a72a0199f31800af0a918cac2f4567f62f3701df",
"body": "…s (#56)\n\nMirror the pattern BasicSourceMapConsumer._buildOriginalMappings already\nuses: collect __originalMappings into per-source buckets during parse, then\nsort each bucket with compareByOriginalPositionsNoSource. Eliminates the\nflat quickSort that ran compareByOriginalPositions (with strcmp on t\n[…]\nts/bench-indexed-init.js) shows +7–20% on init across all sizes;\nnone of the standard jridgewell trace fixtures are sectioned, so this\nscript is the only way to exercise IndexedSourceMapConsumer init.",
"is_bot": false,
"headline": "perf: bucket-by-source sort in IndexedSourceMapConsumer._parseMapping…",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T18:30:15Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "3110d2f3ee27b04240ca100d1d38c71179293be0",
"body": "Mirror PR #49's optimization for the third call site that was still\nre-resolving source URLs per mapping. `eachMapping` walked\n`_generatedMappings` / `_originalMappings` and called\n`util.computeSourceURL(sourceRoot, _sources.at(i), sourceMapURL)` on\neach entry. The constructor already precomputes th\n[…]\nercised by the jridgewell\ntrace/generate suites), but the rationale is identical to #49 and the\ngain shows up on any caller that walks all mappings — debuggers,\ntooling that re-emits source maps, etc.",
"is_bot": false,
"headline": "perf: index into _absoluteSources in eachMapping (#54)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T17:57:34Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "0cd7b1efab15bf11dad4c1fc14257d0e008e59fe",
"body": "The trace bench rig didn't have an `eachMapping` phase, so any change\nthat touches the per-mapping result-building path inside `eachMapping`\n(e.g. the precomputed `_absoluteSources` index) had no measurement\nhook. Add two phases — generated order and original order — keyed\nunder `PHASES=eachmapping-\n[…]\nrelaxed it to `[A-Za-z]` so `eachMapping speed\n(...)` headers are recognized.\n\nSmoke run on preact.js.map shows ~35k ops/sec on both orders;\nself-vs-self bench-diff settles at ±0.3% (rig noise floor).",
"is_bot": false,
"headline": "chore(bench): add eachMapping phases to jridgewell bench (#55)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T17:57:06Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "115420a1fd44bf9bdc75c359841a33f0205a182e",
"body": "`originalPositionFor` already has a single-slot warm-start cache\n(PR #47). The natural analog for `generatedPositionFor` is per-source,\nbecause the typical walk pattern is `for (s of sources) gpf(s, L, C)`\n— each iteration switches source, so a single-slot cache would miss\nevery call.\n\nAdd `_gpfBySr\n[…]\nry other call site (the\nsame discipline used in #47).\n\nNo API change. IndexedSourceMapConsumer.generatedPositionFor delegates\nto BasicSourceMapConsumer.generatedPositionFor and benefits\nautomatically.",
"is_bot": false,
"headline": "perf: per-source warm-start cache for generatedPositionFor (#53)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T17:35:39Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "29cc627a169a2d0eba865228f42da03b6533963e",
"body": "`_findSourceIndex` returns the integer index for a source string. The\nfallback path (when the relative-source check misses) is an O(N) linear\nscan of `_absoluteSources`, and the typical loop pattern\n`for (s of consumer.sources) consumer.generatedPositionFor({source: s, ...})`\nhits that fallback once\n[…]\nso we don't re-scan for sources that\ngenuinely aren't in the map.\n\nHelps `generatedPositionFor`, `allGeneratedPositionsFor`,\n`sourceContentFor`, and the IndexedSourceMapConsumer source-validity\ncheck.",
"is_bot": false,
"headline": "perf: memoize _findSourceIndex string→index lookups (#50)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T17:16:56Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "4aaef49e4a79f84fbd405c0ec157c604a08e322d",
"body": "`_parseMappings` initializes every mapping with `generatedLine`,\n`generatedColumn`, `source`, `originalLine`, `originalColumn`, and\n`name` — null when unset, integer otherwise. The `originalPositionFor`,\n`generatedPositionFor`, and `allGeneratedPositionsFor` result builders\nwere reading those via `u\n[…]\ness. `lastGeneratedColumn`\nkeeps `getArg` because it's added lazily by `computeColumnSpans` only,\nso its presence isn't guaranteed.\n\nPure mechanical refactor; no semantic change. Tests pass unchanged.",
"is_bot": false,
"headline": "perf: drop util.getArg on always-set mapping fields in hot paths (#51)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T17:16:04Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "82869b65a78c353bc78234c61b12dac826bd27f4",
"body": "Direct analog of #36 (skip-sorted check in `sortGenerated`), applied to\n`_buildOriginalMappings`. Well-formed source maps emit segments in\noriginal-position order within each source, so after grouping mappings\nby source, the per-source array is usually already sorted by\n(originalLine, originalColumn\n[…]\ne.\n\nCoverage adds a new internals test that crafts a 2-segment map where\ngenerated and original orders disagree, forcing the per-source array\nto be unsorted and exercising the actual quickSort branch.",
"is_bot": false,
"headline": "perf: skip sorting per-source originalMappings when already sorted (#52)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T17:15:25Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "26c2ea7625be5e3c65054d47af07add72a1a7c1c",
"body": "`originalPositionFor` was re-resolving the source URL on every hit:\n`_sources.at(source)` then `util.computeSourceURL(sourceRoot, src,\nsourceMapURL)`. The constructor already precomputes the same value per\nsource index in `_absoluteSources`, so the hot path can index into it\ndirectly and skip the URL parse + resolve.\n\nNo behavior change: `_absoluteSources[i]` is built as\n`computeSourceURL(sourceRoot, _sources.at(i), sourceMapURL)`, which is\nexactly what the inlined call returned.",
"is_bot": false,
"headline": "perf: read precomputed absolute source URL in originalPositionFor (#49)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T16:35:13Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "c7c92ec69fdbb580b0d233289402fa318288bafa",
"body": "bench-delta.js (used by scripts/bench-diff.sh) only diffs the\n\"source-map-js current\" rows across two runs, so every other library's\nops/sec line is pure runtime tax in the bench-diff workflow. And many\nperf changes are isolated to one phase (e.g. originalPositionFor →\n\"Trace speed (random)\" and \"Tr\n[…]\nh-diff.sh main trace\n\nDrops ~50min full-fixture run to under 2min while preserving the\ntwo-process methodology (which is what avoids the V8 cross-module\ninit bias documented in scripts/bench-diff.sh).",
"is_bot": false,
"headline": "chore(bench): add SOLO and PHASES env filters to jridgewell bench (#48)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T16:25:22Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "280a81921257257e93f8b5cb05dfe809d303e23f",
"body": "Replace the range-check ladder in base64.decode with a 128-entry\nUint8Array indexed by char code (255 sentinel for invalid).\nInline the LUT lookup in the VLQ decoder hot loop, removing the\nfunction-call boundary per VLQ digit on the multi-byte path.",
"is_bot": false,
"headline": "perf: use Uint8Array LUT for base64 decode (#46)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T15:22:01Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "0dabcdccc33a7d0082f1d27cdd94a589fd52c25b",
"body": "Avoid stack-frame allocation per probe and removes a deep-stack\ncrash risk on large maps (e.g., the 9-deep recursive_search call\nseen on vscode.map's 2.1M segments).",
"is_bot": false,
"headline": "perf: convert recursive binary search to iterative (#45)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T15:09:31Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "1ca088d2d5a9be76a267ce6c18bfb7a785457c17",
"body": "Real-world bundler workflows query originalPositionFor with\nmonotonically increasing columns within the same generated line.\nCache the previous (line, column, index) tuple on the consumer;\nwhen a new query has the same line and a column at-or-after the\ncached one, run a bounded inline binary search on\n[cachedIndex, len) instead of binary-searching the full mapping\narray from index 0. binarySearch.search is unchanged so its V8\noptimization profile is preserved on every other call site.",
"is_bot": false,
"headline": "perf: warm-start cache for originalPositionFor",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-10T15:08:07Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "b567cf7ae0b076801c365e79fb45ff4abf8a4006",
"body": "Replace `new Mapping()` with an object literal. V8 optimizes both\nfor hidden class, but the object literal avoids constructor call\noverhead.\n\nResults: -41% parsing time\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: use object literal instead of Mapping constructor",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:53:29Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "06d46aeb224b3e8bfde0ef3585e7e16d239c2644",
"body": "Pre-allocate a single 5-element segment array and use a length counter\ninstead of creating a new array and using push() for each mapping.\n\nAvoids ~2.35M array allocations during parsing.\n\nBenchmark shows ~4.4% parsing improvement (~15ms on 2.35M mappings).\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: reuse segment array to avoid allocations per mapping",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:52:10Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "f4a7575f35a6acace076ab193b68beb39e4a7074",
"body": "Add a lookup table for single-byte VLQ values (values -15 to 15) which\nare the most common in source maps. This avoids the function call\noverhead to base64VLQ.decode for these common cases.\n\nResults: -5% parsing time\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: add fast path for single-byte VLQ decode",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:50:02Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "086e4630b422e04d8dad7fb597e4cf29792bbd3d",
"body": "Instead of pre-scanning to find the segment end, decode VLQ values\ndirectly and stop when hitting a separator. This eliminates one\nloop iteration per segment.\n\nResults: -3-6% parsing time\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: remove end-finding loop in VLQ decode",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:48:01Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "83de12de1891f73c84c23e5cb42b7aeee8e567f8",
"body": "The inline-charCodeAt rewrite of _parseMappings removes all callsites of\n_charIsMappingSeparator, dropping function coverage below the 96 threshold.\nThe method remains on the prototype as a documented helper for subclasses,\nso cover it directly instead of deleting it.",
"is_bot": false,
"headline": "test: cover _charIsMappingSeparator directly",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:45:07Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "743ee64b417d6549e289185e37c193103347fadd",
"body": "- Replace charAt() + string comparison with charCodeAt() + numeric comparison\n- Inline _charIsMappingSeparator function call in hot loop\n- Remove unused cachedSegments variable\n- Remove dead str = aStr.slice() that created garbage\n\nBenchmark shows ~1.3% parsing improvement (~4.6ms on 2.35M mappings).\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: optimize _parseMappings with charCodeAt and remove dead code",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:45:07Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "427a29a9bfe746ef9c9de9a6e6361971d4b8a5ff",
"body": "Move originalMappings construction out of _parseMappings into a separate\n_buildOriginalMappings method that's called lazily when _originalMappings\nis first accessed.\n\nThis avoids the cost of grouping, sorting, and flattening originalMappings\nduring parsing when only generatedMappings is needed (common use case).\n\nBenchmark shows ~53% parsing improvement (~180ms on 2.35M mappings).\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: lazily build originalMappings only when accessed",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:42:15Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "b0c8dcdd7887c888854f522be25a583ae64bc4cb",
"body": "The skip-sorted-check optimization returns early on already-sorted input,\nwhich is the case for every existing test fixture. Without these tests the\nn==2 / n<20 / n>=20 sort branches and the \"found out-of-order\" pre-scan\npath stay uncovered, dropping line/branch coverage below the 98 / 97\nthresholds.\n\nHand-encodes mappings strings via base64VLQ so generated columns within a\nline can be deliberately out of order, then asserts eachMapping yields\nthem sorted.",
"is_bot": false,
"headline": "test: cover sortGenerated branches with unsorted-input maps",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:41:56Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "932170798d94cf59e5fb752eb7e60911fccee857",
"body": "Add early exit check in sortGenerated to detect if the array is already\nin sorted order before performing the actual sort. This is a common case\nfor well-formed source maps and saves the overhead of sorting operations.\n\nResults: -9% parsing time, -5% serialization time\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: skip sorting when array is already sorted",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:41:56Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "d7eee66ab93a8aed4b9ec4396fcc79ecea981cfd",
"body": "Add lookup table for VLQ encoding values -15 to 15, which encode to\na single base64 character. This avoids function call overhead for\nthe most common small delta values in source maps.\n\nResults: -3% serialization time\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: add fast path for single-char VLQ encode",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:41:46Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "8bd727d2f562a05cb39350abd299dba022da7079",
"body": "Use direct string indexing instead of function call to base64.encode().\nAvoids function call overhead and bounds check in hot serialization path.\n\nBenchmark shows ~8.5% serialization improvement (~19ms on 2.35M mappings).\n\nCo-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>",
"is_bot": false,
"headline": "perf: inline base64 encode lookup in VLQ encoder",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T23:41:28Z",
"body_truncated": false,
"is_coding_agent": true
},
{
"oid": "46bc64621381e411b3407ecb244070ebabbf362e",
"body": "scripts/bench-diff.sh runs `yarn bench:jridgewell:{trace,generate}` once on\nthe working tree and once with the lib files of a baseline ref overlaid\ninto the working tree. Each side runs in its own process; the candidate\nbuild's source-map.js / lib are restored on exit (incl. Ctrl-C / failure).\n\nscri\n[…]\nializes physically distinct module instances asymmetrically when\nthe bench chains `new Consumer(...).originalPositionFor(...)`. Validated\nmain vs main, single fixture: all rows within ±5%, mean +1.8%.",
"is_bot": false,
"headline": "add bench-diff rig (two-process, jridgewell)",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T14:49:52Z",
"body_truncated": true,
"is_coding_agent": false
},
{
"oid": "b1c06e69838fb776d647353cf6ecfe2e2cccafd4",
"body": null,
"is_bot": false,
"headline": "set engine to >=22",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T14:06:36Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "6516bdd5065115dc0633801eb869cf034b40a5d1",
"body": null,
"is_bot": false,
"headline": "fix null-source crash in BasicSourceMapConsumer",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T12:03:28Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "a3f01c7fc2edb57df5ee9bd87ddb68ff6e375b30",
"body": null,
"is_bot": false,
"headline": "guard chrome bench reverse lookup against unreferenced sources",
"author_name": "Valentin Semirulnik",
"author_login": "7rulnik",
"committed_at": "2026-05-09T12:03:11Z",
"body_truncated": false,
"is_coding_agent": false
},
{
"oid": "78adfa095ce73badca0858fb3ee6788785e40aae",
"body": null,
"is_bot": false,
"headline": "add chrome 2026 version",
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{
"key": "push_recency",
"name": "Push recency",
"detail": "last push 72 days ago",
"points": 18,
"status": "partial",
"details": [
{
"code": "push_recency",
"params": {
"days": 72
}
}
],
"max_points": 36
},
{
"key": "commit_cadence",
"name": "Commit cadence",
"detail": "2/52 weeks with commits",
"points": 1.4,
"status": "partial",
"details": [
{
"code": "commit_cadence_weeks",
"params": {
"weeks": 2
}
}
],
"max_points": 36
},
{
"key": "commit_volume",
"name": "Commit volume",
"detail": "70 commits in the last year",
"points": 16.6,
"status": "partial",
"details": [
{
"code": "commits_last_year",
"params": {
"count": 70
}
}
],
"max_points": 18
},
{
"key": "openssf_scorecard_maintained",
"name": "OpenSSF Scorecard: Maintained",
"detail": "30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
}
]
},
{
"key": "release_discipline",
"band": "moderate",
"name": "Release discipline",
"note": "Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"openssf_scorecard_signed_releases"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 52,
"inputs": {
"releases_count": 7,
"latest_release_tag": "v1.2.1",
"releases_from_tags": false,
"days_since_latest_release": 681,
"mean_days_between_releases": 173.1
},
"components": [
{
"key": "ships_releases",
"name": "Ships releases",
"detail": "7 releases published",
"points": 27,
"status": "met",
"details": [
{
"code": "releases_published",
"params": {
"count": 7
}
}
],
"max_points": 27
},
{
"key": "release_recency",
"name": "Release recency",
"detail": "latest release 681 days ago",
"points": 7.2,
"status": "partial",
"details": [
{
"code": "release_recency",
"params": {
"days": 681
}
}
],
"max_points": 36
},
{
"key": "release_cadence",
"name": "Release cadence",
"detail": "a release every ~173.1 days",
"points": 12.6,
"status": "partial",
"details": [
{
"code": "release_cadence",
"params": {
"gap": 173.1
}
}
],
"max_points": 27
},
{
"key": "openssf_scorecard_signed_releases",
"name": "OpenSSF Scorecard: Signed-Releases",
"detail": "no releases found",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 10
}
]
},
{
"key": "abandonment",
"band": "excellent",
"name": "Abandonment",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"cap": null,
"state": "maintained",
"guards": [],
"signals": [],
"red_flag": false,
"multiplier_pct": 100,
"declared_reason": null,
"unverified_reason": null,
"unanswered_open_prs": null,
"unanswered_open_issues": null,
"days_since_last_merged_pr": null,
"days_since_last_human_commit": 72,
"days_since_last_human_commit_is_floor": false
},
"components": [
{
"key": "project_is_still_maintained",
"name": "Project is still maintained",
"detail": "last human commit 72 days ago",
"points": 100,
"status": "met",
"details": [
{
"code": "abandonment_maintained",
"params": {
"days": 72
}
}
],
"max_points": 100
}
]
}
],
"description": "Is the project alive — is code being written and are releases shipping?"
},
{
"key": "community",
"band": "at_risk",
"name": "Community & Adoption",
"value": 48,
"weight": 0.18,
"metrics": [
{
"key": "popularity",
"band": "at_risk",
"name": "Popularity & adoption",
"note": null,
"notes": [],
"value": 42,
"inputs": {
"forks": 14,
"stars": 103,
"watchers": 0,
"growth_state": "unverified",
"growth_factor_pct": 100,
"growth_unverified_reason": "no_history"
},
"components": [
{
"key": "stars",
"name": "Stars",
"detail": "103 stars",
"points": 32.6,
"status": "partial",
"details": [
{
"code": "stars",
"params": {
"count": 103
}
}
],
"max_points": 60
},
{
"key": "forks",
"name": "Forks",
"detail": "14 forks",
"points": 9.3,
"status": "partial",
"details": [
{
"code": "forks",
"params": {
"count": 14
}
}
],
"max_points": 25
},
{
"key": "watchers",
"name": "Watchers",
"detail": "0 watchers",
"points": 0,
"status": "missed",
"details": [
{
"code": "watchers",
"params": {
"count": 0
}
}
],
"max_points": 15
}
]
},
{
"key": "community_health",
"band": "critical",
"name": "Community health",
"note": null,
"notes": [],
"value": 19,
"inputs": {
"has_readme": false,
"has_license": false,
"has_contributing": false,
"has_issue_template": false,
"has_code_of_conduct": false,
"has_pull_request_template": false
},
"components": [
{
"key": "readme",
"name": "README",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 22.5
},
{
"key": "license",
"name": "License",
"detail": "license file present, not a recognized license",
"points": 16.9,
"status": "partial",
"details": [
{
"code": "license_custom",
"params": {}
}
],
"max_points": 22.5
},
{
"key": "contributing_guide",
"name": "CONTRIBUTING guide",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 18
},
{
"key": "code_of_conduct",
"name": "Code of conduct",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 13.5
},
{
"key": "issue_template",
"name": "Issue template",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.2
},
{
"key": "pr_template",
"name": "PR template",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 6.3
}
]
},
{
"key": "ecosystem_adoption",
"band": "excellent",
"name": "Ecosystem adoption (downloads)",
"note": "Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"registry_dependents"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 100,
"inputs": {
"packages": [
"source-map-js"
],
"dependents": null,
"ecosystems": "npm",
"total_downloads": null,
"monthly_downloads": 652778455
},
"components": [
{
"key": "monthly_downloads",
"name": "Monthly downloads",
"detail": "652,778,455 downloads/month across npm",
"points": 80,
"status": "met",
"details": [
{
"code": "downloads_monthly",
"params": {
"count": 652778455,
"ecosystems": "npm"
}
}
],
"max_points": 80
},
{
"key": "registry_dependents",
"name": "Registry dependents",
"detail": "not reported by this ecosystem",
"points": 0,
"status": "excluded",
"details": [
{
"code": "not_reported_by_this_ecosystem",
"params": {}
}
],
"max_points": 20
}
]
}
],
"description": "Does the project have users, downloads, attention, and a welcoming setup for contributors?"
},
{
"key": "governance",
"band": "moderate",
"name": "Sustainability & Governance",
"value": 62,
"weight": 0.24,
"metrics": [
{
"key": "maintainer_resilience",
"band": "at_risk",
"name": "Maintainer resilience (bus factor)",
"note": null,
"notes": [],
"value": 43,
"inputs": {
"bus_factor": 1,
"contributors_sampled": 63,
"top_contributor_share": 0.541
},
"components": [
{
"key": "bus_factor",
"name": "Bus factor",
"detail": "1 contributor(s) cover half of all commits",
"points": 9,
"status": "partial",
"details": [
{
"code": "bus_factor",
"params": {
"count": 1
}
}
],
"max_points": 54
},
{
"key": "commit_distribution",
"name": "Commit distribution",
"detail": "top contributor authored 54% of commits",
"points": 10.3,
"status": "partial",
"details": [
{
"code": "top_contributor_share",
"params": {
"share": 54
}
}
],
"max_points": 22.5
},
{
"key": "contributor_breadth",
"name": "Contributor breadth",
"detail": "63 contributors",
"points": 13.5,
"status": "met",
"details": [
{
"code": "contributors_sampled",
"params": {
"count": 63
}
}
],
"max_points": 13.5
},
{
"key": "openssf_scorecard_contributors",
"name": "OpenSSF Scorecard: Contributors",
"detail": "project has 33 contributing companies or organizations",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
}
]
},
{
"key": "responsiveness",
"band": "moderate",
"name": "Issue & PR responsiveness",
"note": null,
"notes": [],
"value": 67,
"inputs": {
"merged_prs": 54,
"open_issues": 5,
"closed_issues": 10,
"issue_closed_ratio": 0.667,
"closed_unmerged_prs": 4
},
"components": [
{
"key": "issue_resolution",
"name": "Issue resolution",
"detail": "67% of issues closed",
"points": 31.2,
"status": "partial",
"details": [
{
"code": "issues_closed_share",
"params": {
"share": 67
}
}
],
"max_points": 46.75
},
{
"key": "pr_acceptance",
"name": "PR acceptance",
"detail": "54/58 decided PRs merged",
"points": 35.6,
"status": "partial",
"details": [
{
"code": "decided_prs_merged",
"params": {
"merged": 54,
"decided": 58
}
}
],
"max_points": 38.25
},
{
"key": "openssf_scorecard_code_review",
"name": "OpenSSF Scorecard: Code-Review",
"detail": "Found 0/30 approved changesets -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
}
]
},
{
"key": "stewardship",
"band": "moderate",
"name": "Ownership & stewardship",
"note": "Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"verified_domain"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 67,
"inputs": {
"followers": 363,
"owner_type": "User",
"is_verified": null,
"owner_login": "7rulnik",
"public_repos": 116,
"account_age_days": 4629
},
"components": [
{
"key": "ownership_backing",
"name": "Ownership backing",
"detail": "personal (user) account",
"points": 10,
"status": "partial",
"details": [
{
"code": "owner_personal",
"params": {}
}
],
"max_points": 30
},
{
"key": "verified_domain",
"name": "Verified domain",
"detail": "not applicable to user accounts",
"points": 0,
"status": "excluded",
"details": [
{
"code": "not_applicable_to_user_accounts",
"params": {}
}
],
"max_points": 20
},
{
"key": "owner_reach",
"name": "Owner reach",
"detail": "363 followers of 7rulnik",
"points": 18.4,
"status": "partial",
"details": [
{
"code": "owner_followers",
"params": {
"count": 363,
"login": "7rulnik"
}
}
],
"max_points": 25
},
{
"key": "track_record",
"name": "Track record",
"detail": "116 public repos, account ~12 yr old",
"points": 25,
"status": "met",
"details": [
{
"code": "public_repos",
"params": {
"count": 116
}
},
{
"code": "account_age_years",
"params": {
"years": 12
}
}
],
"max_points": 25
}
]
},
{
"key": "package_maintenance",
"band": "good",
"name": "Package maintenance",
"note": null,
"notes": [],
"value": 79,
"inputs": {
"packages": [
"source-map-js"
],
"ecosystems": "npm",
"any_deprecated": false,
"min_days_since_publish": 681
},
"components": [
{
"key": "published_resolvable",
"name": "Published & resolvable",
"detail": "1 package(s) on npm",
"points": 25,
"status": "met",
"details": [
{
"code": "packages_published",
"params": {
"count": 1,
"ecosystems": "npm"
}
}
],
"max_points": 25
},
{
"key": "publish_recency",
"name": "Publish recency",
"detail": "latest publish 681 days ago",
"points": 14,
"status": "partial",
"details": [
{
"code": "publish_recency",
"params": {
"days": 681
}
}
],
"max_points": 35
},
{
"key": "version_history",
"name": "Version history",
"detail": "8 published versions",
"points": 20,
"status": "met",
"details": [
{
"code": "published_versions",
"params": {
"count": 8
}
}
],
"max_points": 20
},
{
"key": "not_deprecated",
"name": "Not deprecated",
"detail": "active, not deprecated or yanked",
"points": 20,
"status": "met",
"details": [
{
"code": "package_not_deprecated",
"params": {}
}
],
"max_points": 20
}
]
}
],
"description": "Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?"
},
{
"key": "engineering",
"band": "at_risk",
"name": "Engineering Quality",
"value": 45,
"weight": 0.2,
"metrics": [
{
"key": "engineering_practices",
"band": "moderate",
"name": "Engineering practices",
"note": null,
"notes": [],
"value": 68,
"inputs": {
"has_ci": true,
"has_tests": true,
"has_editorconfig": false,
"has_linter_config": false,
"has_precommit_config": false
},
"components": [
{
"key": "ci_workflows",
"name": "CI workflows",
"detail": "1 workflow(s)",
"points": 24,
"status": "met",
"details": [
{
"code": "ci_workflows",
"params": {
"count": 1
}
}
],
"max_points": 24
},
{
"key": "tests_present",
"name": "Tests present",
"detail": null,
"points": 24,
"status": "met",
"details": [],
"max_points": 24
},
{
"key": "linter_config",
"name": "Linter config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 16
},
{
"key": "pre_commit_hooks",
"name": "Pre-commit hooks",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 9.6
},
{
"key": "editorconfig",
"name": ".editorconfig",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 6.4
},
{
"key": "openssf_scorecard_ci_tests",
"name": "OpenSSF Scorecard: CI-Tests",
"detail": "30 out of 30 merged PRs checked by a CI test -- score normalized to 10",
"points": 20,
"status": "met",
"details": [],
"max_points": 20
}
]
},
{
"key": "documentation",
"band": "critical",
"name": "Documentation",
"note": null,
"notes": [],
"value": 10,
"inputs": {
"topics": [],
"has_wiki": true,
"homepage": null,
"has_readme": false,
"has_docs_dir": false,
"has_description": false
},
"components": [
{
"key": "readme",
"name": "README",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 30
},
{
"key": "documentation_directory",
"name": "Documentation directory",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 25
},
{
"key": "documentation_homepage_site",
"name": "Documentation / homepage site",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "repository_description",
"name": "Repository description",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
},
{
"key": "topics",
"name": "Topics",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
},
{
"key": "wiki",
"name": "Wiki",
"detail": null,
"points": 10,
"status": "met",
"details": [],
"max_points": 10
}
]
}
],
"description": "Are baseline engineering and documentation practices in place?"
},
{
"key": "security",
"band": "moderate",
"name": "Security",
"value": 50,
"weight": 0.16,
"metrics": [
{
"key": "security_posture",
"band": "at_risk",
"name": "Security posture",
"note": "Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"packaging",
"signed_releases"
]
}
},
{
"code": "weights_renormalized",
"params": {}
}
],
"value": 37,
"inputs": {
"source": "openssf_scorecard",
"checks_evaluated": 16,
"scorecard_version": "v5.5.0",
"checks_inconclusive": 2,
"scorecard_aggregate": 3.6
},
"components": [
{
"key": "binary_artifacts",
"name": "Binary-Artifacts",
"detail": "no binaries found in the repo",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "branch_protection",
"name": "Branch-Protection",
"detail": "branch protection is not maximal on development and all release branches",
"points": 0.8,
"status": "partial",
"details": [],
"max_points": 7.5
},
{
"key": "ci_tests",
"name": "CI-Tests",
"detail": "30 out of 30 merged PRs checked by a CI test -- score normalized to 10",
"points": 2.5,
"status": "met",
"details": [],
"max_points": 2.5
},
{
"key": "cii_best_practices",
"name": "CII-Best-Practices",
"detail": "no effort to earn an OpenSSF best practices badge detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 2.5
},
{
"key": "code_review",
"name": "Code-Review",
"detail": "Found 0/30 approved changesets -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "contributors",
"name": "Contributors",
"detail": "project has 33 contributing companies or organizations",
"points": 2.5,
"status": "met",
"details": [],
"max_points": 2.5
},
{
"key": "dangerous_workflow",
"name": "Dangerous-Workflow",
"detail": "no dangerous workflow patterns detected",
"points": 10,
"status": "met",
"details": [],
"max_points": 10
},
{
"key": "dependency_update_tool",
"name": "Dependency-Update-Tool",
"detail": "no update tool detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "fuzzing",
"name": "Fuzzing",
"detail": "project is not fuzzed",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "license",
"name": "License",
"detail": "license file detected",
"points": 2.2,
"status": "partial",
"details": [],
"max_points": 2.5
},
{
"key": "maintained",
"name": "Maintained",
"detail": "30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
},
{
"key": "packaging",
"name": "Packaging",
"detail": "packaging workflow not detected",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 5
},
{
"key": "pinned_dependencies",
"name": "Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "sast",
"name": "SAST",
"detail": "SAST tool is not run on all commits -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "security_policy",
"name": "Security-Policy",
"detail": "security policy file not detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "signed_releases",
"name": "Signed-Releases",
"detail": "no releases found",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 7.5
},
{
"key": "token_permissions",
"name": "Token-Permissions",
"detail": "detected GitHub workflow tokens with excessive permissions",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
"detail": "9 existing vulnerabilities detected",
"points": 0.8,
"status": "partial",
"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
"band": "excellent",
"name": "Dependency advisories",
"note": "Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 64 resolved dependencies against OSV. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"indirect_dependencies_free_of_known_advisories",
"no_advisories_left_outstanding"
]
}
},
{
"code": "weights_renormalized",
"params": {}
},
{
"code": "advisories_scope_repository",
"params": {
"assessed": 64
}
},
{
"code": "advisories_repo_graph_caveat",
"params": {}
},
{
"code": "advisories_reachability",
"params": {}
}
],
"value": 100,
"inputs": {
"source": "osv",
"advisories": 9,
"affected_packages": 6,
"assessed_packages": 64,
"unassessed_packages": 0,
"affected_by_severity": "critical 2, high 3, moderate 1",
"direct_affected_packages": 0
},
"components": [
{
"key": "direct_dependencies_free_of_known_advisories",
"name": "Direct dependencies free of known advisories",
"detail": "no direct dependency carries a known advisory",
"points": 35,
"status": "met",
"details": [
{
"code": "no_direct_advisories",
"params": {}
}
],
"max_points": 35
},
{
"key": "indirect_dependencies_free_of_known_advisories",
"name": "Indirect dependencies free of known advisories",
"detail": "transitive set not separable from development and test dependencies in this scope",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_scope_not_separable",
"params": {}
}
],
"max_points": 25
},
{
"key": "no_advisories_left_outstanding",
"name": "No advisories left outstanding",
"detail": "no advisory carries a publication date",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_no_publication_date",
"params": {}
}
],
"max_points": 40
}
]
},
{
"key": "malicious_dependencies",
"band": "excellent",
"name": "Malicious dependencies",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"source": "osv",
"meaning": "reported as a malicious package by the OpenSSF corpus; the remedy is removal or moving off the compromised name, never an upgrade of the same artifact. Versions the registry has since pulled are listed but not scored",
"packages": [],
"red_flag": false,
"assessed_packages": 64,
"malicious_packages": 0,
"direct_malicious_packages": 0,
"withdrawn_malicious_packages": 0,
"installable_malicious_packages": 0
},
"components": [
{
"key": "no_dependency_reported_as_a_malicious_package",
"name": "No dependency reported as a malicious package",
"detail": "no dependency is reported as a malicious package",
"points": 100,
"status": "met",
"details": [
{
"code": "no_malicious_dependencies",
"params": {}
}
],
"max_points": 100
}
]
},
{
"key": "high_risk_jurisdiction_exposure",
"band": "excellent",
"name": "High-Risk Jurisdiction Exposure",
"note": "Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.",
"notes": [
{
"code": "jurisdiction_evidence_limits",
"params": {}
}
],
"value": 100,
"inputs": {
"meaning": "self-published location evidence; not nationality or citizenship",
"red_flag": false,
"exposures": [],
"policy_countries": [
"Russia",
"Iran",
"North Korea"
],
"review_only_matches": 0,
"assessed_self_published_locations": 16
},
"components": [
{
"key": "policy_exposure_multiplier",
"name": "Policy exposure multiplier",
"detail": "no confirmed policy-scope location match",
"points": 100,
"status": "met",
"details": [
{
"code": "jurisdiction_no_match",
"params": {}
}
],
"max_points": 100
}
]
}
],
"description": "Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure?"
},
{
"key": "ai_readiness",
"band": "at_risk",
"name": "AI Readiness",
"value": 39,
"weight": 0,
"metrics": [
{
"key": "ai_agent_context",
"band": "critical",
"name": "Agent context & guidance",
"note": null,
"notes": [],
"value": 29,
"inputs": {
"has_llms_txt": false,
"legible_history_share": 0.55,
"agent_instruction_files": [],
"agent_instruction_max_bytes": null
},
"components": [
{
"key": "agent_instructions",
"name": "Agent instructions",
"detail": "no CLAUDE.md / AGENTS.md / editor rules",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_instructions",
"params": {}
}
],
"max_points": 45
},
{
"key": "machine_readable_docs_llms_txt",
"name": "Machine-readable docs (llms.txt)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "legible_commit_history",
"name": "Legible commit history",
"detail": "55 of 100 human commits state their intent (structured subject or explanatory body)",
"points": 29.3,
"status": "partial",
"details": [
{
"code": "legible_history",
"params": {
"legible": 55,
"sampled": 100
}
}
],
"max_points": 40
}
]
},
{
"key": "ai_verify_loop",
"band": "at_risk",
"name": "Verify loop (build / test / typecheck)",
"note": null,
"notes": [],
"value": 42,
"inputs": {
"has_nix": false,
"has_tests": true,
"lockfiles": [
"yarn.lock"
],
"has_dockerfile": false,
"typed_language": false,
"bootstrap_files": [],
"has_devcontainer": false,
"has_linter_config": false,
"typecheck_configs": [],
"agent_commit_share": 0.09,
"toolchain_manifests": [],
"dependency_bot_commit_share": 0
},
"components": [
{
"key": "one_command_bootstrap",
"name": "One-command bootstrap",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 18
},
{
"key": "automated_tests",
"name": "Automated tests",
"detail": null,
"points": 22,
"status": "met",
"details": [],
"max_points": 22
},
{
"key": "lint_format_config",
"name": "Lint / format config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "static_type_checking",
"name": "Static type checking",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "reproducible_environment",
"name": "Reproducible environment",
"detail": "lockfile",
"points": 10,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "lockfile"
}
}
],
"max_points": 10
},
{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
"detail": "9 of the last 100 commits agent-authored or agent-credited",
"points": 10,
"status": "met",
"details": [
{
"code": "agent_authored_commits",
"params": {
"count": 9,
"sampled": 100
}
}
],
"max_points": 10
},
{
"key": "automated_maintenance",
"name": "Automated maintenance",
"detail": "no automated dependency updates observed",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_dependency_automation",
"params": {}
}
],
"max_points": 8
},
{
"key": "openssf_scorecard_pinned_dependencies",
"name": "OpenSSF Scorecard: Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "moderate",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 50,
"inputs": {
"primary_language": "JavaScript",
"largest_source_bytes": 15927873,
"source_files_sampled": 51,
"oversized_source_files": 5
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "JavaScript without a type-check config",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_typecheck_config_language",
"params": {
"language": "JavaScript"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "5/51 source files over 60KB",
"points": 49.6,
"status": "partial",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 51,
"oversized": 5
}
}
],
"max_points": 55
}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [
"Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token",
"Community profile unavailable"
],
"report_type": "repository",
"generated_at": "2026-07-22T16:12:14.524527Z",
"schema_version": "0.26.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/7/7rulnik/source-map-js.svg",
"full_name": "7rulnik/source-map-js",
"license_state": "custom",
"license_spdx": null
}
Пов’язані записи
Перевірені репозиторії, що мають спільні каталожні теги або екосистеми з 7rulnik/source-map-js. Читати поруч →
Оцінки — це сигнали, а не гарантії. Вони відображають публічно видимі практики на GitHub — це не аудит коду й не гарантія безпеки.
Відсутні дані виключаються, а ваги перенормовуються — нуль за відсутність ніколи не ставиться. Методологія версіонована й відкрита: метрики v1.13.0, схема v0.26.0 — повна методологія · вікі метрик.
